155451231166 has 32 divisors (see below), whose sum is σ = 291344739840. Its totient is φ = 60434008800.

The previous prime is 155451231151. The next prime is 155451231167. The reversal of 155451231166 is 661132154551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155451231167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1023826 + ... + 1165813.

It is an arithmetic number, because the mean of its divisors is an integer number (9104523120).

Almost surely, 2^155451231166 is an apocalyptic number.

155451231166 is a deficient number, since it is larger than the sum of its proper divisors (135893508674).

155451231166 is a wasteful number, since it uses less digits than its factorization.

155451231166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190120.

The product of its digits is 108000, while the sum is 40.

The spelling of 155451231166 in words is "one hundred fifty-five billion, four hundred fifty-one million, two hundred thirty-one thousand, one hundred sixty-six".